[Fern]

You can't destroy the Dark Shard material item (the one you need for the Necromancer) meaning that they can "waste" your inventory in space in Korvara, since there's no use for the shards there.
 

[Lolzytripd]

would be nice if we could break them apart for void shards....

[Snake]

I second that

[Shujin]

or just add a use for them. But I also don't see why they shouldn't be deleteable.